Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87ab60b6e61bf6d…

MALICIOUS

PDF

77.9 KB Created: 2021-10-10 18:17:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 4be40dab77c10fa2ee713e8a8850bdba SHA-1: 10b73bbc53928ce71a45603dc92f2e8d23583dff SHA-256: f87ab60b6e61bf6d91852927a2dadaa94c53960230a94d02ba7cb4eccbca2e0d
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/1a2a1ce6fcda15052a9203a57a1b8f6d/rovuwukus.pdf In PDF document text
    • https://muzpony.de/obrazki/file/babom.pdfIn PDF document text
    • http://olympusflights.com/files/files/18947089958.pdfIn PDF document text
    • http://studio-orlandini.com/userfiles/files/gozuzedexunudepus.pdfIn PDF document text
    • https://stl-log.com/htdocs/cljr/data/files/24409345968.pdfIn PDF document text
    • http://powercleanperu.com/cms_powerclean_2015/sgi_userfiles/userfiles/files/76141460463.pdfIn PDF document text
    • http://kovovyroba-nosniky.cz/UserFiles/File/sawepolopafirexutuz.pdfIn PDF document text
    • https://stealthwindow.tw/uploads/files/202109041650255316.pdfIn PDF document text
    • http://otpetye.com/images/shared/file/48072278025.pdfIn PDF document text
    • https://mobilaide.com/upload/editor/file/68150189553.pdfIn PDF document text
    • http://adaviestransportltd.com/userfiles/file/zigipuze.pdfIn PDF document text
    • https://amzentransportationindustries.com/admin/imagetemp1/file/nadagejijukeporaruvo.pdfIn PDF document text
    • http://bippex.com/filespath/files/20211003000005.pdfIn PDF document text
    • https://sahodayabbsr.com/test/fckeditor/file/52798988841.pdfIn PDF document text
    • http://flapboxes.custompackageboxes.com/userfiles/files/34502058736.pdfIn PDF document text
    • https://emotionalgift.youngzonejewelry.com/ckfinder/userfiles/files/18915779848.pdfIn PDF document text
    • https://lanegarrett.net/userfiles/file/77283417936.pdfIn PDF document text
    • http://bharatdarshan.net/rgroup/ckfinder/userfiles/files/37462704342.pdfIn PDF document text
    • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/tc955lb7tjvos391akqkeeeqc0/ragubujefemabajesimunuf.pdfIn PDF document text
    • http://ptairsupply.com/userfiles/file/buguxolipuloronakax.pdfIn PDF document text
    • http://www.cerathai.com/image/upload/File/fumegib.pdfIn PDF document text
    • http://slxiang.com/v15/Upload/file/202110106793195.pdfIn PDF document text
    • http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/161603653e5560---82708812333.pdfIn PDF document text
    • http://tandprotheses.com/ckfinder/userfiles/files/81226309993.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=office+365+cracked+downloadPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000caef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAEF 10880 bytes
SHA-256: 978dcb6ee5ed0aff7fe6b9155804f133aae4631cddac91b799d4cf6e2db57450
font_01_sfnt_off0000e44f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE44F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fc61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC61 17472 bytes
SHA-256: e96895cff82238c16036389481e331b6e9d8e2685ed19823be7c5b04b645c0ca